MATERIALI E STRUTTURE RESISTENTI ALL OSSIDAZIONE

Preparation of iron-base alloys, particularly in the form of regenerator cores and other similar matrices, by the codiffusion of aluminum and chromium, using aluminum-iron alloy powder and chromium, aluminum-iron alloy powder and chromium-iron powder or Al-Cr alloy powder as sources of the aluminum...

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Format:	Patent
Sprache:	ita
Schlagworte:	ALLOYS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS HEAT EXCHANGE IN GENERAL HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	Preparation of iron-base alloys, particularly in the form of regenerator cores and other similar matrices, by the codiffusion of aluminum and chromium, using aluminum-iron alloy powder and chromium, aluminum-iron alloy powder and chromium-iron powder or Al-Cr alloy powder as sources of the aluminum and chromium and an atmosphere of mixed H2 and HF to accomplish in situ formation of the aluminum and chromium and their diffusion, and alloying with the iron-base alloy. Assemblies may be bonded to form an integrated structure along with the heating for coduffusion of aluminum and chromium.